 I'll be 99 in July and this doesn't work, this is just fun. I've practically never worked in all my life, I just have fun doing physics. Berkeley is a great place, great university. And I came out here partly because it was Berkeley. A great place to do interesting work. I wanted to produce very pure radiation of a high frequency. And I thought about it and I thought about it. And I sat on a bench in a park and, well hey, I've got an idea, this is the way to do it. Oh yeah, I think it'll probably work. So I went home and it took me a long time to get it done, but I made microwave first, then pushed on up this shorter wavelength up in the infrared and so on. Major microwave amplification by stimulated emission of radiation. Stimulated emission of radiation from molecules and atoms. That's the major. The laser is light amplification by stimulated emission of radiation, so it's the same thing. Only one place that doesn't fit, and that's in the infrared. There's an infrared to be eraser. Have a good time doing physics. Doing physics is good fun. Explore, explore, explore. That's what science is, that's exploration. Finding out new things. So have a good time with it.